| 基于CFD的导管螺旋桨桨叶折断故障监测与诊断研究 |
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| 引用本文： | 欧礼坚. 基于CFD的导管螺旋桨桨叶折断故障监测与诊断研究[J]. 科学技术与工程, 2010, 10(29) |
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| 作者姓名： | 欧礼坚 |
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| 作者单位： | 1. 华南理工大学土木与交通学院,广州,510640
2. 电力学院,广州,510640 |
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| 摘 要： | 利用Fluent软件对导管螺旋桨进行三维非定常的数值计算,设定压力脉动监测点,并对提取的压力信号进行FFT变换,分析导管螺旋桨在正常工作和桨叶折断故障状态下的频谱特征,以此提出导管螺旋桨桨叶折断故障预测的CFD数值模拟方法。
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| 关 键 词： | 螺旋桨 非定常 FFT变换 故障预测 |
| 收稿时间： | 2010-07-18 |
| 修稿时间： | 2010-08-05 |
Fault Detection and Diagnostic Study on the Breaking of Ducted Propeller Blades based on CFD |
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| Ou Lijian. Fault Detection and Diagnostic Study on the Breaking of Ducted Propeller Blades based on CFD[J]. Science Technology and Engineering, 2010, 10(29) |
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| Authors: | Ou Lijian |
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| Affiliation: | OU Li-jian,AN Yuan1(School of Civil Engineering and Transportation,School of Electric Power1,South China University of Tech,Guangzhou 510640,P.R.China) |
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| Abstract: | The unsteady three-dimensional numerical calculation of ducted propeller is carried out using Fluent software.Pressure pulsation monitoring points are set,and then make FFT transformation of pressure signal is extracted.The spectra characteristics of ducted propeller are analyzed in both the normal operation condition and the fault condition of blade breaking to put forward the CFD numerical simulation method of fault prediction of the ducted propeller blade breaking. |
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| Keywords: | propeller unsteady FFT Transformation (Fast Fourier Transformation) fault prediction |
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